Elymus virginicus - Virginia wildrye : 無料・フリー素材/写真
Elymus virginicus - Virginia wildrye / Matt Lavin
| ライセンス | クリエイティブ・コモンズ 表示-継承 2.1 |
|---|---|
| 説明 | This is the only known occurrence of this grass in Gallatin County. Virginia wildrye is very similar to Elymus glaucus. However, Virginia wildrye occurs in disturbed areas at low elevations, such as this trail side population occurring in the town of Bozeman and coexisting with Solanum dulcamara and other weedy species. Virginia wildrye has glumes with basal portions that are widely diverging, lighter in color, and boney-tectured. Blue wildrye (Elymus glaucus) occurs in montane meadows and grassy understory and has glumes with bases that are not divergent and green like the rest of the distal portion of the glumes. The leaves are also sufficiently broad such that they tear longitudinally over the full length.Elymus curvatus has lemma awns that are less than 5 mm long, as in this specimens. However, the broad lax leaf blades in this population are more suggestive of Elymus virginicus. |
| 撮影日 | 2015-08-30 13:16:42 |
| 撮影者 | Matt Lavin , Bozeman, Montana, USA |
| タグ | |
| 撮影地 | Montana, United States 地図 |
| カメラ | COOLPIX AW110 , NIKON |
| 露出 | 0.025 sec (1/40) |
| 開放F値 | f/3.9 |
| 焦点距離 | 5 mm |